#pragma once

#include "derivations.hh"


namespace nix {


/* Read a derivation, after ensuring its existence through
   ensurePath(). */
Derivation derivationFromPath(StoreAPI & store, const Path & drvPath);

/* Place in `paths' the set of all store paths in the file system
   closure of `storePath'; that is, all paths than can be directly or
   indirectly reached from it.  `paths' is not cleared.  If
   `flipDirection' is true, the set of paths that can reach
   `storePath' is returned; that is, the closures under the
   `referrers' relation instead of the `references' relation is
   returned. */
void computeFSClosure(StoreAPI & store, const Path & path,
    PathSet & paths, bool flipDirection = false,
    bool includeOutputs = false, bool includeDerivers = false);

/* Return the path corresponding to the output identifier `id' in the
   given derivation. */
Path findOutput(const Derivation & drv, string id);

bool willBuildLocally(const Derivation & drv);

bool substitutesAllowed(const Derivation & drv);


}
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<div class='path'>path: <a href='/guix/log/?id=d9d1421a4fdc9ab3c99a6dc07af09c548e7d177c'>root</a>/<a href='/guix/log/tests?id=d9d1421a4fdc9ab3c99a6dc07af09c548e7d177c'>tests</a>/<a href='/guix/log/tests/guix-system.sh?id=d9d1421a4fdc9ab3c99a6dc07af09c548e7d177c'>guix-system.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/guix-system.sh?id=d9d1421a4fdc9ab3c99a6dc07af09c548e7d177c&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-04-29 21:57:52 +0200'>2019-04-29</span></td><td><a href='/guix/commit/tests/guix-system.sh?id=09a9f1097458e57d271b05dbf11f1fe0fd98c088'>tests: Adjust wildcard when testing OS examples.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-01-21 23:09:55 +0100'>2019-01-21</span></td><td><a href='/guix/commit/tests/guix-system.sh?id=f61e6e5238ff43b959c258ed92531029a1c82fa7'>tests: Adjust for removal of 'device' field in &lt;bootloader-configuration&gt;.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-01-11 12:14:38 +0100'>2019-01-11</span></td><td><a href='/guix/commit/tests/guix-system.sh?id=84a2de36a10dc2ab80f86e16721cbd228c85279e'>services: Deprecate a few more service procedures.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-10-18 01:12:22 +0200'>2018-10-18</span></td><td><a href='/guix/commit/tests/guix-system.sh?id=39d7fdce453b0ca23ecbed72048647debbaa58a6'>services: dhcp-client: Deprecate 'dhcp-client-service' procedure.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>